450SX Class Arlington race winner James Stewart is on a roll.(Photo: Supercrossonline /Hoppenworld)

With seven races in the books for the 2014 Monster Energy AMA Supercross season, James Stewart became the first back-to-back winner, and as the championship heads to Atlanta, the Yoshimura Suzuki rider hopes to have a repeat performance of last year, where he captured the Main Event win. Monster Energy/Pro Circuit/Kawasaki’s Adam Cianciarulo, who is a rookie in the Eastern Regional 250SX Class, wrote the perfect story to what appears to be an incredible career, by winning the first race of his career.

Last year, Stewart took home his first 450SX Class win of the season at the 2013 Atlanta stop. GEICO Honda’s Wil Hahn led wire to wire in the night’s Eastern Regional 250SX Class race en route to the first victory of his career. Now that Hahn has moved to the premier class, he’s yet to finish inside the top five; he tied his career-best finish in Arlington with eighth place.

Marc Marquez of Spain and Repsol Honda Team poses with the trophy of MotoGP World Champions. (Photo: Getty Images)

To mark the 21st birthday of Marc Marquez, MotoGP’s youngest ever premier class World Champion, we offer 21 facts about the boy from Cervera.

- At the opening race of 2013 in Qatar, Marquez became the fourth youngest rider of all-time to finish on the podium in the premier-class of Grand Prix racing after Randy Mamola, Eduardo Salatino and Norick Abe

- His first MotoGP win at the Grand Prix of Americas at the age of just 20 years 63 days, made him the youngest ever rider to win a premier-class Grand Prix, taking the record from Freddie Spencer who was 20 years 196 days when he won the Belgium 500cc GP at Spa-Francorchamps in 1982

French investigators have ruled out any criminal wrongdoing in the debilitating ski accident of Formula One great Michael Schumacher, a state prosecutor said Monday.

Albertville prosecutor Patrick Quincy said “no infraction by anyone has been turned up” and the probe has been closed, his office said in a statement — responding to questions about whether the Meribel ski station in the French Alps or an equipment maker might have had some role in Schumacher’s injury.